Home / 28,325.64-39,089.26-15,750.38

Finding the Fourth Proportional to 28,325.64, 39,089.26 and 15,750.38

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Solution

The fourth proportional to 28,325.64, 39,089.26 and 15,750.38 is: 21,735.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.64 : 39,089.26 = 15,750.38 : x
  2. Step 2: Convert to fraction form
    28,325.64/39,089.26 = 15,750.38/x
  3. Step 3: Cross multiply
    28,325.64x = 39,089.26 × 15,750.38
  4. Step 4: Simplify right side
    28,325.64x = 615,670,698.92
  5. Step 5: Solve for x
    x = 615,670,698.92/28,325.64
  6. Step 6: Final answer
    x = 21,735.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.